现象：宿主机与虚拟机能互相ping通，宿主机能ping通外网，但虚拟机ping不通外网

原因：vmware的网关设置有误

1）查看linux网络配置信息

[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
UUID=4af77be9-c7c7-4245-acac-afc2b7f91e49
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
HWADDR=00:50:56:26:15:DE
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
IPADDR=192.168.137.3
NETMASK=255.255.255.0
GATEWAY=192.168.137.254     #linux网关与vmware网关需一致才行
DNS1=114.114.114.114
DNS2=10.111.1.2

2）点击：虚拟网络编辑器

3）点击：更改设置 → VMnet8 → NAT设置

4）保持vmware网关是否与linux网关一致

5）重启网卡

[root@localhost ~]# service network restart
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface eth0:  Determining if ip address 192.168.137.3 is already in use for device eth0...     [  OK  ]

6）ping通百度

[root@localhost ~]# ping baidu.com
PING baidu.com (110.242.68.66) 56(84) bytes of data.
64 bytes from 110.242.68.66: icmp_seq=1 ttl=128 time=60.3 ms
64 bytes from 110.242.68.66: icmp_seq=2 ttl=128 time=64.3 ms